package com.ma.gulimall.member.exception;

/**
 * @ClassName UsernameException
 * @Author: mayongqiang
 * @DATE 2021/10/8 22:13
 * @Description:
 */

public class UsernameException extends RuntimeException {
    public UsernameException() {
        super("存在相同的用户名");
    }
}
